So I'm new to this modding thing, though a long time flashlight nut, and I'm fiddling with an old princeton tec apex. I've replaced the 4 5mm leds with some of their uv counterparts I had lying around, and so far I'm liking it. I'd like to swap out the main led for a uv as well, but I don't know enough about this yet to know which way to go. Does anyone have any recommendations?